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Acquisitions - Limestone Bancorp, Inc. Narrative (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Apr. 30, 2023
USD ($)
branch
shares
Sep. 30, 2023
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
Business Acquisition [Line Items]          
Other non-interest expense     $ 18,033 $ 20,945 $ 14,076
Professional fees     12,109 17,041 12,094
Salaries and employee benefit costs     150,041 144,031 112,690
Data processing and software expense     25,221 $ 21,607 $ 14,241
Common Stock          
Business Acquisition [Line Items]          
Issuance of common shares related to the merger (in shares) | shares       6,827,668  
Limestone Bancorp, Inc.          
Business Acquisition [Line Items]          
Number of branches operated | branch 20        
Common shares paid (in shares) | shares 0.90        
Equity interest issued $ 177,900        
Acquisition related costs     200 $ 16,900  
Other non-interest expense     $ 400 2,900  
Professional fees       6,000  
Salaries and employee benefit costs       5,900  
Data processing and software expense       1,800  
Various other non-interest expense       $ 300  
Contract termination fees   $ 1,800      
Limestone Bancorp, Inc. | Common Stock          
Business Acquisition [Line Items]          
Issuance of common shares related to the merger (in shares) | shares 6,827,668